WO2018227596A1

WO2018227596A1 - Time domain resource indication method, data transmission method and device and communication system

Info

Publication number: WO2018227596A1
Application number: PCT/CN2017/088742
Authority: WO
Inventors: 纪鹏宇; 周华
Original assignee: 富士通株式会社; 纪鹏宇; 周华
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2018-12-20

Abstract

A time domain resource indication method, data transmission method and device, and a communication system. The time domain resource indication method comprises: configuring a single bit of information and a set of bits of information in downlink control information (DCI); indicating whether time domain resources scheduled by a network device for a terminal device are time slot level or symbol level by means of the single bit of information; and indicating the time domain resources scheduled by the network device for the terminal device by means of the set of bits of information. By means of the method according to the embodiments of the present invention, a set of bits of information and a single bit of information are added to the DCI so as to indicate time domain resources, thereby satisfying the application scenarios in which different levels of time domain resources are scheduled, and ensuring that the additional overhead of a control channel is relatively small without increasing the detection complexity of a physical downlink control channel (PDCCH).

Description

Time domain resource indication method, data transmission method, device and communication system

Technical field

The present invention relates to the field of communications, and in particular, to a time domain resource indication method, a data transmission method, an apparatus, and a communication system in a new wireless system.

Background technique

In the research of the new radio (NR) standard of the 5th generation mobile communication system (5th generation, 5G), the Long Term Evolution (LTE) system only needs to indicate the frequency domain resources, and the control channel information needs A scheduling resource indicating two dimensions of the time domain and the frequency domain. The network device, for example, the base station, needs to indicate the current scheduling of the user equipment (UE, User Equipment) by using additional bits in the downlink control information (DCI, Downlink Control Information) in the downlink control channel (PDCCH, Physical Downlink Control Channel). Time domain length information (time domain resources). The granularity of the indication may be a slot level or a symbol level, that is, the time domain length information may be in units of time slots or may be in units of symbols. In addition, the indication needs to be able to satisfy the following four application scenarios:

Scenario 1: Scheduling a time slot.

Scenario 2: Scheduling a collection of multiple time slots. Wherein, the set may consist of consecutive time slots or non-contiguous time slots in the time domain.

Scenario 3: Scheduling one or more symbols. Among them, multiple symbols are continuous, that is, generally do not need to schedule discontinuous symbols.

Scenario 4: Simultaneous scheduling of symbols and time slots, where the symbols may be one or more, where the time slots may be a collection of one or more time slots.

It should be noted that the above description of the technical background is only for the purpose of facilitating a clear and complete description of the technical solutions of the present invention, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these aspects are set forth in the background section of the present invention.

Summary of the invention

The inventor has found that in order to support the above four scenarios, a set of rules can be designed for the time domain resource indication method in the DCI, taking into account the overhead of the indication field in the DCI, and without increasing the detection complexity of the PDCCH, The indication methods include:

Method 1: Two time bitmaps are used to indicate the time domain resources of the slot level and the symbol level respectively.

Method 2: Time domain resource indication is performed by the method of starting position and scheduling length.

Method 3: Time domain resource indication is performed by the method of starting position and ending position.

However, for the method 1, if it is currently the case of scenes 1, 2, and 3, that is, the case where only the time domain resources of the slot level or the symbol level exist, the indication information of one of the bit bitmaps does not work, resulting in Waste of resources for control information; for methods 2 and 3, if the scheduled time domain resources are discontinuous time slots, additional bits are required for indication, thereby increasing the overhead of control information.

In order to solve the above problem, an embodiment of the present invention provides a time domain resource indication method, a data transmission method, an apparatus, and a communication system.

According to a first aspect of the embodiments of the present invention, a time domain resource indication method is provided, where the method includes:

Determining, by the first indication information in the downlink control information (DCI), whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level, and indicating, by the second indication information in the DCI, that the network device is the terminal device Scheduled time domain resources.

According to a second aspect of the embodiments of the present invention, a data transmission method is provided, wherein the method includes:

Receiving downlink control information (DCI), where the DCI includes first indication information and second indication information, where the first indication information is used to indicate whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level, where The second indication information is used to indicate a time domain resource that the network device schedules for the terminal device;

Determining, according to the first indication information and the second indication information in the DCI, a time domain resource that the network device schedules for the terminal device;

Data transmission is performed by using a network device for time domain resources scheduled by the terminal device.

According to a third aspect of the embodiments of the present invention, a time domain resource indicating apparatus is provided, where the apparatus includes:

An indication unit, which indicates, by using the first indication information in the downlink control information (DCI), whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level, and indicates the network device by using the second indication information in the DCI A time domain resource scheduled for the terminal device.

According to a fourth aspect of the embodiments of the present invention, a data transmission apparatus is provided, wherein the apparatus comprises:

a receiving unit, which receives downlink control information (DCI), where the DCI includes first indication information and second indication information, where the first indication information is used to indicate whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level The second indication information is used to indicate a time domain resource that the network device schedules for the terminal device;

a determining unit, configured to determine, according to the first indication information and the second indication information in the DCI, a time domain resource that the network device schedules for the terminal device;

And a transmission unit, configured to perform data transmission by using the network device for time domain resources scheduled by the terminal device.

According to a fifth aspect of the embodiments of the present invention, there is provided a network device, wherein the network device comprises the apparatus of the foregoing third aspect.

According to a sixth aspect of the embodiments of the present invention, there is provided a terminal device, wherein the terminal device comprises the apparatus of the foregoing fourth aspect.

According to a seventh aspect of the embodiments of the present invention, there is provided a communication system, comprising: a network device and a terminal device, the network device comprising the device according to the foregoing third aspect, the terminal device comprising the foregoing fourth Aspect of the device.

An advantageous effect of the embodiment of the present invention is that the first indication information in the DCI indicates whether the time domain resource scheduled by the network device for the terminal device is a symbol level or a time slot level, and specifically indicates the second indication information in the DCI. The time domain resources can meet the usage requirements of the above four scenarios, ensuring that the added overhead of the control channel is small, and the detection complexity of the PDCCH is not increased.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the drawings, in which <RTIgt; It should be understood that the embodiments of the invention are not limited in scope. The embodiments of the present invention include many variations, modifications, and equivalents within the scope of the appended claims.

Features described and/or illustrated with respect to one embodiment may be used in one or more other embodiments in the same or similar manner, in combination with, or in place of, features in other embodiments. .

It should be emphasized that the term "comprising" or "comprises" or "comprising" or "comprising" or "comprising" or "comprising" or "comprises"

DRAWINGS

Elements and features described in one of the figures or one embodiment of the embodiments of the invention may be combined with elements and features illustrated in one or more other figures or embodiments. In addition, in the drawings, similar standards Numbers indicate corresponding parts in several figures and may be used to indicate corresponding parts used in more than one embodiment.

The accompanying drawings are included to provide a further understanding of the embodiments of the invention Obviously, the drawings in the following description are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without any inventive labor. In the drawing:

1 is a schematic diagram of a communication system according to an embodiment of the present invention;

2 is a schematic diagram of a time domain resource indication method of Embodiment 1;

3 is a schematic diagram of scheduling when the value of the bit information is "0/1 101110";

4 is a schematic diagram of scheduling when the value of the bit information is "0/1 10110110";

Figure 5 is a schematic diagram of a data transmission method of Embodiment 2;

6 is a schematic diagram of a time domain resource indicating apparatus of Embodiment 3;

Figure 7 is a schematic diagram of a data transmission device of Embodiment 4;

8 is a schematic diagram of a network device of Embodiment 5;

9 is a schematic diagram of a terminal device of Embodiment 6.

detailed description

The foregoing and other features of the present invention will be apparent from the The specific embodiments of the present invention are disclosed in the specification and the drawings, which are illustrated in the embodiment of the invention The invention includes all modifications, variations and equivalents falling within the scope of the appended claims. Various embodiments of the present invention will be described below with reference to the accompanying drawings. These embodiments are merely exemplary and are not limiting of the invention.

In the embodiment of the present invention, the terms "first", "second", etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order of the elements, and these elements should not be used by these terms. Limited. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "comprising," "having," or "an"

In the embodiments of the present invention, the singular forms "a", "the", "the", "the" and "the" It is to be understood that the singular In addition, the term "according to" should be understood To "at least in part", the term "based on" should be understood to mean "based at least in part on" unless the context clearly dictates otherwise.

In the embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network that conforms to any communication standard such as Long Term Evolution (LTE), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.

Moreover, the communication between the devices in the communication system may be performed according to any phase of the communication protocol, and may include, but is not limited to, the following communication protocols: 1G (Generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and the future. 5G, New Radio (NR), etc., and/or other communication protocols currently known or to be developed in the future.

In the embodiment of the present invention, the term "network device" refers to, for example, a device in a communication system that accesses a terminal device to a communication network and provides a service for the terminal device. The network device may include, but is not limited to, a device: a base station (BS, a base station), an access point (AP, an Access Point), a transmission and reception point (TRP), a broadcast transmitter, and a mobility management entity (MME, Mobile). Management Entity), gateway, server, Radio Network Controller (RNC), Base Station Controller (BSC), and so on.

The base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), and the like, and may further include a Remote Radio Head (RRH). , Remote Radio Unit (RRU), relay or low power node (eg femto, pico, etc.). And the term "base station" may include some or all of their functions, and each base station may provide communication coverage for a particular geographic area. The term "cell" can refer to a base station and/or its coverage area, depending on the context in which the term is used.

In the embodiment of the present invention, the term "user equipment" (UE) or "Terminal Equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives a network service. The user equipment may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.

The user equipment may include, but is not limited to, a device: a cellular phone (Cellular Phone), a personal digital assistant (PDA, Personal Digital Assistant), a wireless modem, a wireless communication device, and a handheld device. Equipment, machine type communication equipment, laptop computers, cordless phones, smart phones, smart watches, digital cameras, and the like.

For example, in a scenario such as the Internet of Things (IoT), the user equipment may also be a machine or device that performs monitoring or measurement, and may include, but is not limited to, a Machine Type Communication (MTC) terminal, In-vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, and the like.

The scenario of the embodiment of the present invention is described below by way of example, but the present invention is not limited thereto.

1 is a schematic diagram of a communication system according to an embodiment of the present invention, schematically illustrating a case where a user equipment and a network device are taken as an example. As shown in FIG. 1, the communication system 100 may include a network device 101 and a terminal device 102 (for simplicity) Figure 1 shows only one terminal device as an example).

In the embodiment of the present invention, an existing service or a service that can be implemented in the future can be performed between the network device 101 and the terminal device 102. For example, these services include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and high reliability low latency communication (URLLC, Ultra-Reliable and Low- Latency Communication), and more.

The terminal device 102 can transmit data to the network device 101, for example, using an unlicensed transmission mode. The network device 101 can receive data sent by one or more terminal devices 102 and feed back information (for example, ACK/non-acknowledgement NACK) information to the terminal device 102, and the terminal device 102 can confirm the end of the transmission process according to the feedback information, or can further Perform new data transfer or data retransmission.

The time domain resource indication method, the data transmission method, the device and the system according to the embodiments of the present invention are described below with reference to the accompanying drawings and specific embodiments.

Example 1

This embodiment provides a time domain resource indication method, which is applied to a network device of a communication system, such as a gNB defined by the NR standard. 2 is a schematic diagram of the method, as shown in FIG. 2, the method includes:

In step 201, the first indication information in the downlink control information (DCI) indicates whether the time domain resource that the network device schedules for the terminal device is a slot level or a symbol level, and the second indication information in the DCI indicates that the network device is the The time domain resource of the terminal device scheduling.

In this embodiment, the first indication information and the second indication information may be one IE in the DCI, and the first indication information may be one-bit information, and the network is indicated by the one-bit information. Whether the time domain resource scheduled by the device for the terminal device is slot level or symbol level. In addition, the foregoing second indication information may be information of a group of bits, and the information of the group of bits specifically indicates that the network device is a time domain resource scheduled by the terminal device.

In this embodiment, the first indication information in the DCI indicates whether the time domain resource scheduled by the network device for the terminal device is a symbol level or a time slot level, and specifically indicates that the network device is the terminal by using the second indication information in the DCI. The time domain resources of the device scheduling can meet different application scenarios, ensuring that the added overhead of the control channel is small, and the detection complexity of the PDCCH is not increased.

In this embodiment, the one bit is used to indicate whether the scheduling is a time domain resource of a slot level or a time domain resource of a symbol level. For example, the value of the bit "0" represents that the time domain resource of the slot level is scheduled, and the value of the bit "1" represents that the time domain resource of the symbol level is scheduled. For the same reason, the "0" can be used to represent the scheduling of the time domain resources of the symbol level, and the "1" is used to represent the scheduling of the time domain resources at the time slot level, which is not limited in this embodiment.

In this embodiment, the set of bits is an indication area of a time domain resource, and is used to indicate a time domain resource at a time slot level or a symbol level.

In an embodiment, if the time domain resource scheduled by the network device for the terminal device is a slot level, that is, the current scheduling of the time domain resource is indicated as a slot level scheduling, the set of bits may be configured as A form of a bit map for indicating a time slot scheduling situation, wherein each bit is used to indicate whether a corresponding time slot is scheduled.

In another embodiment, if the time domain resource scheduled by the network device for the terminal device is a symbol level, that is, the current scheduling of the time domain resource is indicated as a symbol level scheduling, since the scheduled symbols are continuous, A set of bits is configured to indicate the starting position and length (number of symbols) of the scheduled symbol. For example, the first few bits of the set of bits are used to indicate the first scheduling symbol of the scheduled consecutive symbols (the starting position of the scheduled symbol), and the remaining bits are used to indicate the total number of consecutive symbols scheduled (scheduled The length of the symbol).

In this embodiment, since the scheduled symbols are continuous, they do not need to be limited by slot boundaries, that is, the symbol lengths may be across slots, and thus, the present embodiment can satisfy the foregoing to some extent. The need for scenario 4.

In this embodiment, for scenario 4, it may also be satisfied by scheduling of two DCIs, that is, one slot level scheduling and one symbol level scheduling, where for time slot level time domain resource scheduling, The indication of the time domain resource is performed by using the foregoing bitmap, and the time domain resource scheduling at the symbol level can be The indication of the time domain resource is performed in the manner of the foregoing starting position + symbol length, as described above, and details are not described herein again.

In this embodiment, the length (number of bits) of the set of bits may be determined by the number of bits required for symbol level time domain resource scheduling, or may be determined by the number of bits required for time domain resource scheduling at the time slot level. It is decided that this embodiment is not limited thereto.

In this embodiment, the number of bits required for symbol level time domain resource scheduling can be determined by the number of symbols included in one slot.

In an embodiment, if a time slot contains 7 symbols, the length of the set of bits may be 6 bits, wherein for the symbol level scheduling, the first 3 bits may be used to indicate the starting position, after passing 3 bits to indicate the symbol length (the number of symbols to be scheduled), the starting position can be any symbol in one slot, and the number of symbols to be scheduled is up to 7, that is, the maximum length is 7 symbols; scheduling for slot level The scheduled time slot can be indicated by the 6-bit bit bitmap. In this case, the maximum number of schedulable time slots that can be supported is 6.

Table 1 shows the time domain resource indication mode in this embodiment.

Table 1

FIG. 3 is a schematic diagram showing the scheduling when the value (one bit) of the first indication information is “0” or “1” and the value of the second indication information (a group of bits) is “101110”. As shown in FIG. 3, whether the scheduling is a symbol level scheduling or a slot level scheduling may be indicated by "0" or "1". For symbol level scheduling, the starting position is indicated by "101", as shown in FIG. As shown, the starting position is located at the 5th symbol of the first time slot, and the symbol length is indicated by "110", as shown in FIG. 3, the symbol length is 6; for slot level scheduling, the pass bit The form of the bitmap indicates whether the time slot corresponding to each bit is scheduled. As shown in FIG. 3, “0” indicates that it is not scheduled, “1” indicates that it is scheduled, and the six bits are used to indicate the six times. Whether the gap is scheduled.

In another embodiment, if a time slot contains 14 symbols, the length of the group of bits may be 8 bits, wherein for symbol level scheduling, the first 4 bits may be used to indicate the starting position, The last 4 bits to indicate the symbol length (the number of symbols to be scheduled), the starting position can be any character in a time slot Number, and the number of symbols to be scheduled is up to 14, that is, the maximum length is 14 symbols; for the scheduling of the slot level, the scheduled time slot can be indicated by means of the bitmap of the 8 bits. The maximum number of schedulable slots that can be supported is 8.

Table 2 shows the time domain resource indication mode in this embodiment.

Table 2

4 is a schematic diagram of scheduling when the value of the first indication information (1 bit) is "0" or "1" and the value of the second indication information (a group of bits) is "10110110". As shown in FIG. 4, whether the scheduling is a symbol level scheduling or a slot level scheduling may be indicated by "0" or "1". For symbol level scheduling, the starting position is indicated by "1011", as shown in FIG. As shown, the starting position is located at the 12th symbol of the first time slot, and the symbol length is indicated by "0110", as shown in FIG. 3, the symbol length is 6, as can be seen from FIG. The symbol level scheduling of the mode is scheduling across time slots; for the scheduling of the slot level, whether the time slot corresponding to each bit is scheduled is indicated by the form of a bit bitmap, as shown in FIG. 4, “0” indicates that Scheduling, "1" indicates that the 8 bits are used to indicate whether the 8 time slots are scheduled.

The foregoing two embodiments provide the number of bits required to determine the slot level scheduling according to the number of bits required for time domain resource scheduling at the symbol level, and then determine the length of the set of bits, but this embodiment does not use this. As a limitation, the length of the set of bits may also be determined based on other policies of the time domain resource scheduling at the symbol level, or may be determined according to the number of bits required for time domain resource scheduling at the time slot level, or may be determined according to other strategies. .

In this embodiment, the number of bits required for the time-domain resource scheduling of the time slot level may be determined in advance, or may be determined by the maximum number of available continuous scheduling time slots configured by the upper layer, which is not limited in this embodiment. .

In this embodiment, the scheduling manner of the time domain resource, that is, the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level (ie, an understanding of the second indication information), The first indication information is indicated, and may also be configured or indicated by the network device in a static, semi-static or other dynamic manner, that is to say, the first indication information is optional.

When the method in this embodiment indicates that the network device is scheduled by the terminal device by using the first indication information in the DCI. Whether the domain resource is a slot level or a symbol level, and the second indication information in the DCI is used to indicate the time domain resource scheduled by the network device for the terminal device, which can meet different application scenarios and ensure the added overhead of the control channel. Small, while not increasing the detection complexity of the PDCCH.

Example 2

The present embodiment provides a data transmission method, which is applied to a terminal device of a communication system, such as a UE defined by the NR standard, for detecting a PDCCH to determine a time domain resource for which the network device is scheduled, and The reception of the downlink data or the transmission of the uplink data is performed on the time domain resource, and the same contents as those in the first embodiment are not repeatedly described. Figure 5 is a schematic diagram of the method, as shown in Figure 5, the method includes:

Step 501: Receive downlink control information (DCI), where the DCI includes first indication information and second indication information, where the first indication information is used to indicate whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol. Level, the second indication information is used to indicate a time domain resource that the network device schedules for the terminal device;

Step 502: Determine, according to the first indication information and the second indication information in the DCI, a time domain resource that the network device schedules for the terminal device.

Step 503: Perform data transmission by using the network device for time domain resources scheduled by the terminal device.

In this embodiment, related content of the first indication information and the second indication information has been described in Embodiment 1, and details are not described herein again.

In this embodiment, after receiving the DCI, the terminal device may determine, according to the first indication information included in the DCI, whether the time domain resource scheduled by the network device is a slot level or a symbol level, and further according to The foregoing second indication information included in the DCI determines a time domain resource for which the network device is scheduled. Thereby, the terminal device can use the time domain resource for data transmission, for example, receiving downlink data on the time domain resource or sending uplink data on the time domain resource.

The data transmission method in this embodiment is only for the determination of the time domain resource scheduled by the network device by the terminal device. In this embodiment, the other behaviors of the terminal device are not limited. For example, the terminal device may also receive the The received DCI determines frequency domain resources or other resources scheduled by the network device. For example, the terminal device may perform other processing according to other received information (broadcast information or dedicated information), such as access, synchronization, etc., and may refer to the current There is technology, so I won't go into details here.

According to the method of the embodiment, the terminal device may determine, according to the first indication information and the second indication information included in the received DCI, the time domain resource that the network device schedules for the terminal device, and further perform data transmission. It proves that the added overhead of the control channel is small, and does not increase the detection complexity of the PDCCH.

Example 3

The embodiment of the present invention provides a time domain resource indicating device. The principle of the device is similar to that of the first embodiment. The specific implementation may refer to the implementation of the method in the first embodiment. .

FIG. 6 is a schematic diagram of a time domain resource indication apparatus according to the embodiment. As shown in FIG. 6, the apparatus 600 includes: an indication unit 601, which indicates that the network device is a terminal device by using the first indication information in the downlink control information (DCI). Whether the scheduled time domain resource is a slot level or a symbol level, and the second indication information in the DCI indicates the time domain resource that the network device schedules for the terminal device.

In this embodiment, if the time domain resource scheduled by the network device for the terminal device is a slot level, the set of bits is in the form of a bitmap, where each bit is used to indicate whether the corresponding slot is scheduled. .

In this embodiment, if the time domain resource scheduled by the network device for the terminal device is a symbol level, the first predetermined number of bits of the set of bits are used to indicate the starting position of the scheduled symbol, and the remaining bits are used to indicate The length of the symbol being dispatched.

In this embodiment, the length of the set of bits is determined by the number of bits required for symbol level time domain resource scheduling, or the length of the set of bits is required by time slot resource scheduling at the time slot level. The number of bits is determined.

In this embodiment, the number of bits required for the symbol level time domain resource scheduling is determined by the number of symbols included in one slot. If a time slot contains 7 symbols, the number of bits required for scheduling the time domain resource at the symbol level is 6 bits, and the length of the set of bits is 6 bits; if a time slot contains 14 symbols, Then, the number of bits required for the time domain resource scheduling of the symbol level is 8 bits, and the length of the group of bits is 8 bits.

In this embodiment, the number of bits required for time slot resource scheduling in the slot level is predefined or determined by the maximum available consecutive scheduling slots configured by the higher layer.

The device in this embodiment indicates, by using the first indication information in the DCI, whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level, and when the network device is scheduled by the terminal device by using the second indication information in the DCI. The indication of the domain resource can meet different application scenarios, ensuring that the added overhead of the control channel is small, and the detection complexity of the PDCCH is not increased.

Example 4

The present embodiment provides a data transmission device. The principle of the device is similar to that of the second embodiment. For the specific implementation, reference may be made to the implementation of the method in the second embodiment.

7 is a schematic diagram of a data transmission apparatus according to the embodiment. As shown in FIG. 7, the apparatus 700 includes: a receiving unit 701, a determining unit 702, and a transmitting unit 703, where the receiving unit 701 receives downlink control information (DCI), The DCI includes first indication information and second indication information, where the first indication information is used to indicate whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level, and the second indication information is used to indicate the network device. a time domain resource scheduled for the terminal device; the determining unit 702 determines, according to the first indication information and the second indication information in the DCI, a time domain resource that the network device schedules for the terminal device; the transmission unit 703 uses the network The device performs data transmission for the time domain resources scheduled by the terminal device.

According to the apparatus of the embodiment, the terminal device may determine, according to the first indication information and the second indication information included in the received DCI, the time domain resource that the network device schedules for the terminal device, and further perform data transmission, thereby ensuring that the control channel is newly added. The overhead is small, and the detection complexity of the PDCCH is not increased.

Example 5

The embodiment provides a network device, where the network device includes the time domain resource indication device as described in Embodiment 3.

FIG. 8 is a schematic diagram of a network device according to an embodiment of the present invention. As shown in FIG. 8, network device 800 can include a processor 810 and a memory 820; memory 820 is coupled to processor 810. The memory 820 can store various data; in addition, a program 830 for information processing is stored, and the program 830 is executed under the control of the processor 810 to receive various information transmitted by the terminal device and transmit various information to the terminal device. .

In one embodiment, the functionality of the time domain resource indicating device can be integrated into the central processor 810. The processor 810 may be configured to: indicate, by using the first indication information in the downlink control information (DCI), whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level, by using the second in the DCI. The indication information indicates a time domain resource that the network device schedules for the terminal device.

In another embodiment, the time domain resource indicating device may be configured separately from the processor 810. For example, the time domain resource indicating device may be configured as a chip connected to the processor 810, and the time domain resource indication is implemented by the control of the processor 810. The function of the device.

In addition, as shown in FIG. 8, the network device 800 may further include: a transceiver 840, an antenna 850, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It should be noted that the network device 800 does not have to include all the components shown in FIG. 8; in addition, the network device 800 may also include components not shown in FIG. 8, and reference may be made to the prior art.

The network device in this embodiment indicates, by using the first indication information in the DCI, whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level, and scheduling the network device as a terminal device by using the second indication information in the DCI. The time domain resources are instructed to meet different application scenarios, ensuring that the added overhead of the control channel is small, and the detection complexity of the PDCCH is not increased.

Example 6

The embodiment provides a terminal device, which includes the data transmission device as described in Embodiment 4.

FIG. 9 is a schematic diagram showing the system configuration of a terminal device 900 according to an embodiment of the present invention. As shown in FIG. 9, the terminal device 900 can include a processor 910 and a memory 920; the memory 920 is coupled to the processor 910. It should be noted that the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.

In one embodiment, the functionality of the data transfer device can be integrated into the processor 910. The processor 910 may be configured to: receive downlink control information (DCI), where the DCI includes first indication information and second indication information, where the first indication information is used to indicate a time domain that the network device schedules for the terminal device. Whether the resource is a slot level or a symbol level, the second indication information is used to indicate a time domain resource that the network device schedules for the terminal device, and the network device is determined according to the first indication information and the second indication information in the DCI. The time domain resource scheduled by the terminal device; the data transmission is performed by using the network device for the time domain resource scheduled by the terminal device.

In another embodiment, the data transmission device may be configured separately from the processor 910. For example, the data transmission device may be configured as a chip connected to the processor 910, and the function of the data transmission device is implemented by the control of the processor 910.

As shown in FIG. 9, the terminal device 900 may further include: a communication module 930, an input unit 940, a display 950, and a power supply 960. It should be noted that the terminal device 900 does not have to include all the components shown in FIG. 9; in addition, the terminal device 900 may further include components not shown in FIG. 9, and reference may be made to the related art.

As shown in FIG. 9, processor 910, also sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device that receives input and controls various components of terminal device 900. operating.

The memory 920 can be, for example, one or more of a buffer, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable device. Various data can be stored, and programs for executing related information can be stored. And the processor 910 can execute the program stored by the memory 920 to implement information storage or processing and the like. The functions of other components are similar to those of the existing ones and will not be described here. The various components of terminal device 900 may be implemented by special purpose hardware, firmware, software, or a combination thereof without departing from the scope of the invention.

The terminal device in this embodiment determines, according to the first indication information and the second indication information in the received DCI, the time domain resource that the network device schedules for the terminal device, and further performs data transmission, thereby ensuring that the added cost of the control channel is increased. Small, while not increasing the detection complexity of the PDCCH.

Example 7

The embodiment provides a communication system, including the network device as described in Embodiment 5 and the terminal device as described in Embodiment 6.

The above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software. The present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

The method/apparatus described in connection with the embodiments of the invention may be embodied directly in hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in FIG. 7 and/or one or more combinations of functional block diagrams may correspond to individual software modules of a computer program flow, or to individual hardware modules. These software modules may correspond to the respective steps shown in FIG. 5, respectively. These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).

The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor. Processor And the storage medium can be located in the ASIC. The software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if a device (such as a mobile terminal) uses a larger capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.

One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein. An application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof. One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

The present invention has been described in connection with the specific embodiments thereof, and it should be understood by those skilled in the art that A person skilled in the art can make various modifications and changes to the present invention within the scope of the present invention.

With regard to the embodiments including the above embodiments, the following supplementary notes are also disclosed:

Supplementary note 1, a time domain resource indicating device, wherein the device comprises:

And an indicating unit, by using the second indication information in the downlink control information (DCI), the time domain resource that the network device schedules for the terminal device.

The device of claim 1, wherein the indication unit further indicates, by the first indication information in the DCI, whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level.

The device of claim 1, wherein the device further comprises:

A configuration unit configured to schedule a time domain resource scheduled by the terminal device in a static or semi-static manner, where the scheduling mode is a slot level or a symbol level.

The device of claim 2, wherein the first indication information is information of one bit in the DCI.

The device of claim 1, wherein the second indication information is information of a group of bits in the DCI.

The apparatus of claim 5, wherein the time domain resource scheduled for the terminal device is a time slot Level, then the set of bits is in the form of a bitmap, where each bit is used to indicate whether the corresponding slot is scheduled.

The apparatus of claim 5, wherein if the time domain resource scheduled for the terminal device is a symbol level, a predetermined predetermined number of bits of the set of bits are used to indicate a starting position of the scheduled symbol The remaining bits are used to indicate the length of the scheduled symbol.

The device of claim 5, wherein the length of the set of bits is determined by a number of bits required for symbol level time domain resource scheduling, or the length of the set of bits is determined by a slot level The number of bits required for time domain resource scheduling is determined.

The apparatus of claim 8, wherein the number of bits required for the symbol level time domain resource scheduling is determined by the number of symbols included in one time slot.

The apparatus of claim 9, wherein if a time slot includes 7 symbols, the number of bits required for the time domain resource scheduling of the symbol level is 6 bits, the set of bits The length is 6 bits; if one slot contains 14 symbols, the number of bits required for the time domain resource scheduling of the symbol level is 8 bits, and the length of the group of bits is 8 bits.

The apparatus of claim 8, wherein the number of bits required for time slot resource scheduling of the time slot level is predefined or determined by a maximum number of continuously available scheduling slots configured by a higher layer.

Supplementary note 12 is a data transmission device, wherein the device comprises:

a receiving unit, which receives downlink control information (DCI), where the DCI includes second indication information, where the second indication information is used to indicate a time domain resource that the network device schedules for the terminal device;

a determining unit, configured to determine, according to the second indication information in the DCI and the scheduling manner of the time domain resource, the time domain resource that the network device schedules for the terminal device;

The device of claim 12, wherein the time domain resource is scheduled in a manner that the network device is configured in a static or semi-static or dynamic manner.

The device of claim 13, wherein the DCI further includes first indication information, where the first indication information is used to indicate whether the scheduling mode of the time domain resource is a slot level or a symbol level. .

Claims

A time domain resource indicating device, wherein the device comprises:

An indication unit, which indicates, by using the first indication information in the downlink control information (DCI), whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level, and indicates the network device by using the second indication information in the DCI A time domain resource scheduled for the terminal device.
The apparatus according to claim 1, wherein said first indication information is information of one bit in said DCI, and said second indication information is information of a group of bits in said DCI.
The apparatus of claim 2, wherein if the time domain resource scheduled for the terminal device is a slot level, the set of bits is in the form of a bitmap, wherein each bit is used to indicate a corresponding slot Whether it is scheduled.
The apparatus according to claim 2, wherein if the time domain resource scheduled for the terminal device is a symbol level, a predetermined predetermined number of bits of the set of bits are used to indicate a starting position of the scheduled symbol, and the remaining bits Used to indicate the length of the scheduled symbol.
The apparatus of claim 2, wherein the length of the set of bits is determined by a number of bits required for symbol level time domain resource scheduling, or the length of the set of bits is by time slot level time domain resources The number of bits required for scheduling is determined.
The apparatus of claim 5 wherein the number of bits required for the symbol level time domain resource scheduling is determined by the number of symbols included in a time slot.
The apparatus according to claim 6, wherein if a time slot contains 7 symbols, the number of bits required for scheduling of the symbol level time domain resource is 6 bits, and the length of the group of bits is 6 Bit; if a slot contains 14 symbols, the number of bits required for scheduling the time domain resource at the symbol level is 8 bits, and the length of the group of bits is 8 bits.
The apparatus of claim 5, wherein the number of bits required for time slot resource scheduling of the slot level is predefined or determined by a maximum number of continuously available scheduling slots configured by a higher layer.
A data transmission device, wherein the device comprises:

a receiving unit, which receives downlink control information (DCI), where the DCI includes first indication information and second indication information, where the first indication information is used to indicate whether the time domain resource scheduled by the network device for the terminal device is a slot level or a symbol level The second indication information is used to indicate a time domain resource that the network device schedules for the terminal device;

a determining unit, configured to determine, according to the first indication information and the second indication information in the DCI, a time domain resource that the network device schedules for the terminal device;

And a transmission unit, configured to perform data transmission by using the network device for time domain resources scheduled by the terminal device.
A communication system comprising a network device and a terminal device, the network device comprising the device of any one of claims 1-8, the terminal device comprising the device of claim 9.